Python 如何以编程方式更改 Tkinter 标签的颜色？
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How to change the color of a Tkinter label programmatically?
提问by Sean W
I am trying to change the color of a Tkinter label when ever the user clicks the check button. I am having trouble writing the function correctly and connecting that to the command parameter.
每当用户单击复选按钮时，我都会尝试更改 Tkinter 标签的颜色。我无法正确编写函数并将其连接到命令参数。
Here is my code:
这是我的代码：
import Tkinter as tk
root = tk.Tk()
app = tk.Frame(root)
app.pack()
label = tk.Label(app, bg="white", pady=5, font=(None, 1), height=20, width=720)
checkbox = tk.Checkbutton(app, bg="white", command=DarkenLabel)
label.grid(row=0, column=0, sticky="ew")
checkbox.grid(row=0, column=0, sticky="w")
def DarkenLabel():
label.config(bg="gray")
root.mainloop()
Thank you
谢谢
回答by abhinav
In your code, command=DarkenLabelis unable to find reference to the function DarkenLabel. Thus you need to define the function above that line, so you may use your code as following:
在您的代码中，command=DarkenLabel找不到对函数 DarkenLabel 的引用。因此，您需要在该行上方定义函数，因此您可以使用以下代码：
import Tkinter as tk
def DarkenLabel():
label.config(bg="gray")
root = tk.Tk()
app = tk.Frame(root)
app.pack()
label = tk.Label(app, bg="white", pady=5, font=(None, 1), height=20, width=720)
checkbox = tk.Checkbutton(app, bg="white", command=DarkenLabel)
label.grid(row=0, column=0, sticky="ew")
checkbox.grid(row=0, column=0, sticky="w")
root.mainloop()
Hope it helps!
希望能帮助到你！
